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Manganocalcite coated with green blende (cleophane) from the Zlatograd mine in Bulgaria, year 2010.
Dimensions of the stone: L: 72mm x W: 75mm x Thickness: 38mm x Weight: 247g.
Manganocalcite is a variety of calcite that owes its pink colour to the presence of manganese.
Manganocalcite's chemical composition: Manganese hydroxide MnO(OH) and calcium carbonate CaCO3.
Its hardness is 3-4 on the Mohs scale. Colour: pale pink.
Cleaning:
Warm soapy water, cloth or soft bristle brush due to its low hardness.
